What is pertilization?

Answer 1

Pertilization appears to be a typographical error or a misunderstanding, as there is no widely recognized term "pertilization" in scientific literature. If you meant "fertilization," it refers to the process where a sperm cell unites with an egg cell, leading to the formation of a zygote, which eventually develops into an embryo. This process is fundamental in sexual reproduction for many organisms, including plants and animals. If you meant a different term, please provide clarification.